/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:54:14,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:54:14,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:54:14,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:54:14,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:54:14,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:54:14,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:54:14,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:54:14,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:54:14,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:54:14,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:54:14,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:54:14,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:54:14,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:54:14,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:54:14,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:54:14,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:54:14,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:54:14,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:54:14,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:54:14,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:54:14,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:54:14,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:54:14,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:54:14,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:54:14,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:54:14,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:54:14,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:54:14,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:54:14,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:54:14,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:54:14,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:54:14,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:54:14,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:54:14,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:54:14,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:54:14,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:54:14,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:54:14,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:54:14,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:54:14,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:54:14,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 07:54:14,674 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:54:14,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:54:14,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:54:14,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:54:14,676 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:54:14,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:54:14,677 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:54:14,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:54:14,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:54:14,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:54:14,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:54:14,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:54:14,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:54:14,678 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:54:14,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:54:14,679 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:54:14,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:54:14,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:54:14,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:54:14,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:54:14,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:54:14,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:54:14,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:54:14,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:54:14,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:54:14,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:54:14,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:54:14,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:54:14,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:54:14,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:54:14,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:54:15,014 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:54:15,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:54:15,022 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:54:15,023 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:54:15,024 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c [2020-10-14 07:54:15,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/724953f73/4c845163d52b413b87b0aa297b12ca92/FLAG31612c1ab [2020-10-14 07:54:15,566 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:54:15,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c [2020-10-14 07:54:15,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/724953f73/4c845163d52b413b87b0aa297b12ca92/FLAG31612c1ab [2020-10-14 07:54:15,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/724953f73/4c845163d52b413b87b0aa297b12ca92 [2020-10-14 07:54:15,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:54:15,937 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:54:15,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:54:15,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:54:15,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:54:15,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:54:15" (1/1) ... [2020-10-14 07:54:15,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3ae440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:15, skipping insertion in model container [2020-10-14 07:54:15,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:54:15" (1/1) ... [2020-10-14 07:54:15,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:54:15,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:54:16,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:54:16,361 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:54:16,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:54:16,470 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:54:16,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:16 WrapperNode [2020-10-14 07:54:16,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:54:16,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:54:16,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:54:16,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:54:16,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:16" (1/1) ... [2020-10-14 07:54:16,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:16" (1/1) ... [2020-10-14 07:54:16,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:16" (1/1) ... [2020-10-14 07:54:16,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:16" (1/1) ... [2020-10-14 07:54:16,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:16" (1/1) ... [2020-10-14 07:54:16,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:16" (1/1) ... [2020-10-14 07:54:16,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:16" (1/1) ... [2020-10-14 07:54:16,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:54:16,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:54:16,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:54:16,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:54:16,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:54:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:54:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:54:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 07:54:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 07:54:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 07:54:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 07:54:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 07:54:16,599 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 07:54:16,599 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 07:54:16,599 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:54:16,599 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 07:54:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:54:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 07:54:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 07:54:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 07:54:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 07:54:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 07:54:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 07:54:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 07:54:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 07:54:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 07:54:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 07:54:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 07:54:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 07:54:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 07:54:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 07:54:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:54:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:54:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:54:17,183 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:54:17,184 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 07:54:17,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:54:17 BoogieIcfgContainer [2020-10-14 07:54:17,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:54:17,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:54:17,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:54:17,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:54:17,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:54:15" (1/3) ... [2020-10-14 07:54:17,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30350b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:54:17, skipping insertion in model container [2020-10-14 07:54:17,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:16" (2/3) ... [2020-10-14 07:54:17,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30350b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:54:17, skipping insertion in model container [2020-10-14 07:54:17,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:54:17" (3/3) ... [2020-10-14 07:54:17,199 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c [2020-10-14 07:54:17,211 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:54:17,219 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:54:17,234 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:54:17,262 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:54:17,262 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:54:17,263 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:54:17,263 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:54:17,263 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:54:17,263 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:54:17,264 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:54:17,264 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:54:17,287 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2020-10-14 07:54:17,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 07:54:17,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:17,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:17,299 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:17,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:17,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1311688707, now seen corresponding path program 1 times [2020-10-14 07:54:17,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:17,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1000744351] [2020-10-14 07:54:17,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:17,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:17,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:17,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 07:54:17,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:17,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-10-14 07:54:17,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:17,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:17,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:17,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 07:54:17,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:17,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 07:54:18,189 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-14 07:54:18,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:18,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:18,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:18,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:18,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:18,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:54:18,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:18,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:18,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:18,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:18,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:18,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:18,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:18,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:18,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:18,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:18,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:18,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:18,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:18,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:18,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:18,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:18,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:18,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:18,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 07:54:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:18,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:18,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:18,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:18,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:18,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:18,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:18,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:18,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:18,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:54:18,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:18,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:18,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 07:54:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:18,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:18,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:18,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:18,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:18,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:54:18,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:18,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:18,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:18,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 07:54:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:18,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:18,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:18,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:18,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:18,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:54:18,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:18,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:18,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:18,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:18,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:18,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 07:54:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:18,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:18,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:18,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:18,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:18,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:54:18,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:18,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:18,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:18,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:18,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:18,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:18,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 07:54:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:18,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:18,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:18,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:18,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:18,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:54:18,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:18,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:18,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:18,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:18,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:18,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:18,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:18,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:18,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:18,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:18,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:18,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:18,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:18,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:18,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:18,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:54:18,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:18,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:18,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:54:18,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1000744351] [2020-10-14 07:54:18,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:54:18,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:54:18,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271427002] [2020-10-14 07:54:18,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:54:18,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:18,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:54:18,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:54:18,456 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 7 states. [2020-10-14 07:54:19,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:19,176 INFO L93 Difference]: Finished difference Result 182 states and 264 transitions. [2020-10-14 07:54:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:54:19,178 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-10-14 07:54:19,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:19,194 INFO L225 Difference]: With dead ends: 182 [2020-10-14 07:54:19,194 INFO L226 Difference]: Without dead ends: 108 [2020-10-14 07:54:19,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:54:19,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-14 07:54:19,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2020-10-14 07:54:19,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-14 07:54:19,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2020-10-14 07:54:19,257 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 60 [2020-10-14 07:54:19,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:19,257 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-10-14 07:54:19,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:54:19,258 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-10-14 07:54:19,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 07:54:19,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:19,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:19,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:54:19,261 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:19,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:19,262 INFO L82 PathProgramCache]: Analyzing trace with hash -418202369, now seen corresponding path program 1 times [2020-10-14 07:54:19,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:19,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136837377] [2020-10-14 07:54:19,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:19,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:19,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:19,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 07:54:19,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:19,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-10-14 07:54:19,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:19,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:19,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:54:19,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:54:19,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:54:19,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:20,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:20,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:20,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:20,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:20,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:20,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:54:20,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:20,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:20,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:20,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:20,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:20,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:20,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:20,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:20,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:20,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:20,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:20,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:54:20,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:20,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:20,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:20,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:20,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:20,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:20,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 07:54:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:20,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:20,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:20,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:20,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:20,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:20,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:20,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:54:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:20,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:20,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 07:54:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:20,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:20,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:20,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:20,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:20,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:54:20,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:20,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:20,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:20,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:20,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:20,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:20,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 07:54:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:20,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:20,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:20,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:20,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:20,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:54:20,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:20,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:20,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:20,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 07:54:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:20,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:20,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:20,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:20,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:20,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:54:20,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:20,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:20,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:20,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 07:54:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:20,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:20,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:20,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:20,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:20,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:20,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:20,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:20,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:20,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:20,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:20,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:20,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:20,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:20,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:20,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:20,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:20,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:20,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:54:20,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:20,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:20,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:54:20,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136837377] [2020-10-14 07:54:20,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:54:20,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 07:54:20,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305134274] [2020-10-14 07:54:20,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 07:54:20,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:20,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 07:54:20,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:54:20,282 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand 13 states. [2020-10-14 07:54:20,584 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-14 07:54:20,832 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-14 07:54:21,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:21,930 INFO L93 Difference]: Finished difference Result 180 states and 256 transitions. [2020-10-14 07:54:21,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:54:21,931 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-10-14 07:54:21,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:21,933 INFO L225 Difference]: With dead ends: 180 [2020-10-14 07:54:21,933 INFO L226 Difference]: Without dead ends: 108 [2020-10-14 07:54:21,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:54:21,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-14 07:54:21,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2020-10-14 07:54:21,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-14 07:54:21,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 133 transitions. [2020-10-14 07:54:21,973 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 133 transitions. Word has length 60 [2020-10-14 07:54:21,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:21,974 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 133 transitions. [2020-10-14 07:54:21,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 07:54:21,974 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 133 transitions. [2020-10-14 07:54:21,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 07:54:21,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:21,983 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:21,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:54:21,983 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:21,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:21,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1183078652, now seen corresponding path program 1 times [2020-10-14 07:54:21,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:21,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364765426] [2020-10-14 07:54:21,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:22,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:22,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 07:54:23,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:54:23,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1612 [2020-10-14 07:54:23,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 07:54:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 07:54:23,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:54:23,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:23,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:54:23,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:23,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:23,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:23,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:23,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 07:54:23,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 07:54:23,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:23,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:23,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:23,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:23,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:23,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:23,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 07:54:23,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:23,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:23,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:23,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:54:23,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:23,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:23,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:23,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:54:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:23,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:23,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:23,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:23,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:23,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:54:23,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:23,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:23,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:23,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:23,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:24,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:24,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:54:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:24,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:24,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:24,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:24,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:24,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 07:54:24,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:24,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:24,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:24,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:24,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:54:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:24,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:24,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:24,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:24,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:24,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:54:24,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:24,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:54:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:24,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:54:24,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:54:24,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364765426] [2020-10-14 07:54:24,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:54:24,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:54:24,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353822763] [2020-10-14 07:54:24,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:54:24,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:24,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:54:24,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:54:24,165 INFO L87 Difference]: Start difference. First operand 107 states and 133 transitions. Second operand 10 states. [2020-10-14 07:54:24,321 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-14 07:54:25,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:25,570 INFO L93 Difference]: Finished difference Result 235 states and 311 transitions. [2020-10-14 07:54:25,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:54:25,571 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-14 07:54:25,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:25,575 INFO L225 Difference]: With dead ends: 235 [2020-10-14 07:54:25,576 INFO L226 Difference]: Without dead ends: 169 [2020-10-14 07:54:25,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:54:25,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-14 07:54:25,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2020-10-14 07:54:25,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-10-14 07:54:25,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 214 transitions. [2020-10-14 07:54:25,601 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 214 transitions. Word has length 82 [2020-10-14 07:54:25,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:25,602 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 214 transitions. [2020-10-14 07:54:25,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:54:25,602 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 214 transitions. [2020-10-14 07:54:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 07:54:25,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:25,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:25,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:54:25,605 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:25,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:25,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1517603962, now seen corresponding path program 1 times [2020-10-14 07:54:25,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:25,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554980845] [2020-10-14 07:54:25,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:25,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:26,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:26,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 07:54:26,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:26,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 956 [2020-10-14 07:54:26,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:26,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:26,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:54:26,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:54:26,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 07:54:26,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:26,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:26,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:26,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:26,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:26,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:26,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:54:26,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:26,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:26,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:26,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:26,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:26,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:26,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:26,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:26,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:26,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:26,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:26,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 07:54:26,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:26,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:26,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:54:26,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:26,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 07:54:26,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:26,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:26,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:26,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:26,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:26,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:26,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:26,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:26,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:26,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:26,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:26,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:26,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:26,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:26,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:26,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:26,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:26,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 07:54:26,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:26,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:26,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:27,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:27,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:27,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:27,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:27,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:27,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 07:54:27,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:27,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:27,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:27,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:27,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:27,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:27,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:54:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:27,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:27,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:27,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:27,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:27,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 07:54:27,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:27,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:27,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:27,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:27,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:27,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:27,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:54:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:27,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:27,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:27,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:27,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:27,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 07:54:27,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:27,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:27,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:27,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:27,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:54:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:27,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:27,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:27,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:27,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:27,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:54:27,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:27,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:27,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:54:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:54:27,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:54:27,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554980845] [2020-10-14 07:54:27,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:54:27,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-14 07:54:27,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305964867] [2020-10-14 07:54:27,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 07:54:27,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:27,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 07:54:27,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-14 07:54:27,380 INFO L87 Difference]: Start difference. First operand 165 states and 214 transitions. Second operand 16 states. [2020-10-14 07:54:34,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:34,682 INFO L93 Difference]: Finished difference Result 1579 states and 2226 transitions. [2020-10-14 07:54:34,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-10-14 07:54:34,683 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2020-10-14 07:54:34,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:34,696 INFO L225 Difference]: With dead ends: 1579 [2020-10-14 07:54:34,696 INFO L226 Difference]: Without dead ends: 1455 [2020-10-14 07:54:34,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2594 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1422, Invalid=6234, Unknown=0, NotChecked=0, Total=7656 [2020-10-14 07:54:34,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2020-10-14 07:54:34,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1413. [2020-10-14 07:54:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1413 states. [2020-10-14 07:54:34,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1981 transitions. [2020-10-14 07:54:34,866 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1981 transitions. Word has length 82 [2020-10-14 07:54:34,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:34,866 INFO L479 AbstractCegarLoop]: Abstraction has 1413 states and 1981 transitions. [2020-10-14 07:54:34,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 07:54:34,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1981 transitions. [2020-10-14 07:54:34,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:54:34,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:34,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:34,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:54:34,871 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:34,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:34,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1375228694, now seen corresponding path program 1 times [2020-10-14 07:54:34,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:34,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038148884] [2020-10-14 07:54:34,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:34,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:34,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:35,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:35,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:35,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 07:54:35,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:54:35,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-10-14 07:54:35,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:35,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:35,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:35,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-14 07:54:35,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:54:35,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:35,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:35,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:35,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:35,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:35,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:35,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:54:35,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:35,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:35,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:35,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:35,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:35,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:35,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:35,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:35,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:35,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:35,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:35,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:54:35,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:35,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:35,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:35,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:35,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:35,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:35,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:35,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:35,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:35,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:35,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:35,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:35,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:35,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:35,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:35,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:35,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:35,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:35,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:35,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:35,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:35,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:35,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:35,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:35,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:35,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:35,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:35,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:35,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:35,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:35,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:35,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:35,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:35,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:35,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:54:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:35,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:35,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:35,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:35,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:35,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:35,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:35,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:35,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:35,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:35,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:35,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:35,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:54:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:35,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:35,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:35,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:35,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:35,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:35,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:35,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:35,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:35,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:35,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:35,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:35,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:54:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:35,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:35,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:35,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:54:35,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:35,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:54:35,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:35,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:35,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:35,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:54:35,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:54:35,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:35,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:54:35,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038148884] [2020-10-14 07:54:35,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:54:35,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:54:35,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495139199] [2020-10-14 07:54:35,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:54:35,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:35,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:54:35,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:54:35,883 INFO L87 Difference]: Start difference. First operand 1413 states and 1981 transitions. Second operand 8 states. [2020-10-14 07:54:37,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:37,272 INFO L93 Difference]: Finished difference Result 4045 states and 5729 transitions. [2020-10-14 07:54:37,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:54:37,273 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-14 07:54:37,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:37,297 INFO L225 Difference]: With dead ends: 4045 [2020-10-14 07:54:37,297 INFO L226 Difference]: Without dead ends: 2673 [2020-10-14 07:54:37,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:54:37,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2673 states. [2020-10-14 07:54:37,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2673 to 2605. [2020-10-14 07:54:37,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2020-10-14 07:54:37,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3638 transitions. [2020-10-14 07:54:37,596 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3638 transitions. Word has length 84 [2020-10-14 07:54:37,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:37,597 INFO L479 AbstractCegarLoop]: Abstraction has 2605 states and 3638 transitions. [2020-10-14 07:54:37,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:54:37,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3638 transitions. [2020-10-14 07:54:37,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:54:37,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:37,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:37,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:54:37,604 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:37,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:37,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1632036146, now seen corresponding path program 1 times [2020-10-14 07:54:37,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:37,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084588935] [2020-10-14 07:54:37,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:37,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 07:54:38,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-10-14 07:54:38,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:54:38,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:54:38,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 07:54:38,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:38,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:54:38,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:38,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:38,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:38,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:38,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:38,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:54:38,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:54:38,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:38,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 07:54:38,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:38,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:38,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:38,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:38,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:38,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:38,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:38,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:54:38,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:38,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:38,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:38,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:38,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:54:38,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:38,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:38,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:38,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:38,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:54:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:38,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:54:38,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:38,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:38,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:38,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:54:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:38,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:54:38,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:38,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:38,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:38,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:38,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:54:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:38,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:38,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:38,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 07:54:38,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:38,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:54:38,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:38,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:38,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:38,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:54:38,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:54:38,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:38,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:54:38,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1084588935] [2020-10-14 07:54:38,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:54:38,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-14 07:54:38,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419579617] [2020-10-14 07:54:38,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 07:54:38,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:38,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 07:54:38,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-10-14 07:54:38,774 INFO L87 Difference]: Start difference. First operand 2605 states and 3638 transitions. Second operand 16 states. [2020-10-14 07:54:43,544 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-14 07:54:44,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:44,667 INFO L93 Difference]: Finished difference Result 6481 states and 9127 transitions. [2020-10-14 07:54:44,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-10-14 07:54:44,667 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 84 [2020-10-14 07:54:44,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:44,691 INFO L225 Difference]: With dead ends: 6481 [2020-10-14 07:54:44,691 INFO L226 Difference]: Without dead ends: 3917 [2020-10-14 07:54:44,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1665 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1084, Invalid=4028, Unknown=0, NotChecked=0, Total=5112 [2020-10-14 07:54:44,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3917 states. [2020-10-14 07:54:44,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3917 to 3711. [2020-10-14 07:54:44,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3711 states. [2020-10-14 07:54:44,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3711 states to 3711 states and 5216 transitions. [2020-10-14 07:54:44,973 INFO L78 Accepts]: Start accepts. Automaton has 3711 states and 5216 transitions. Word has length 84 [2020-10-14 07:54:44,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:44,974 INFO L479 AbstractCegarLoop]: Abstraction has 3711 states and 5216 transitions. [2020-10-14 07:54:44,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 07:54:44,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3711 states and 5216 transitions. [2020-10-14 07:54:44,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:54:44,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:44,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:44,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:54:44,977 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:44,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:44,977 INFO L82 PathProgramCache]: Analyzing trace with hash -208666490, now seen corresponding path program 1 times [2020-10-14 07:54:44,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:44,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38454362] [2020-10-14 07:54:44,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:45,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:45,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:48,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:48,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 07:54:48,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:54:48,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3835 [2020-10-14 07:54:48,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:48,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:48,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:48,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 07:54:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:54:48,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:48,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:48,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:48,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:48,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:48,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:48,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:54:48,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:48,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:48,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:48,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:48,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:48,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:48,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:48,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:48,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:48,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:48,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:48,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:54:48,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:48,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:48,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:48,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:54:48,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:48,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:48,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:48,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:48,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:48,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:48,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:48,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:48,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:48,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:48,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:48,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:48,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:49,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:49,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:49,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:49,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:49,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:49,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:54:49,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:49,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:49,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:49,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:49,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:49,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:49,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:49,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:49,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:49,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:49,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:49,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:54:49,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:49,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:49,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:49,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:49,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:49,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:49,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:54:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:49,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:49,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:49,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:49,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:49,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:54:49,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:49,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:54:49,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:49,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 07:54:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:49,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:49,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:49,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:49,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:49,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:49,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:49,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:49,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:49,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:54:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:49,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:49,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:49,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:49,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:49,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:49,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:54:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:49,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:54:49,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38454362] [2020-10-14 07:54:49,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:54:49,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:54:49,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066462109] [2020-10-14 07:54:49,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:54:49,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:49,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:54:49,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:54:49,201 INFO L87 Difference]: Start difference. First operand 3711 states and 5216 transitions. Second operand 10 states. [2020-10-14 07:54:50,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:50,847 INFO L93 Difference]: Finished difference Result 10683 states and 15086 transitions. [2020-10-14 07:54:50,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:54:50,848 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-10-14 07:54:50,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:50,893 INFO L225 Difference]: With dead ends: 10683 [2020-10-14 07:54:50,894 INFO L226 Difference]: Without dead ends: 7013 [2020-10-14 07:54:50,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:54:50,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7013 states. [2020-10-14 07:54:51,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7013 to 6947. [2020-10-14 07:54:51,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6947 states. [2020-10-14 07:54:51,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6947 states to 6947 states and 9654 transitions. [2020-10-14 07:54:51,544 INFO L78 Accepts]: Start accepts. Automaton has 6947 states and 9654 transitions. Word has length 84 [2020-10-14 07:54:51,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:51,547 INFO L479 AbstractCegarLoop]: Abstraction has 6947 states and 9654 transitions. [2020-10-14 07:54:51,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:54:51,547 INFO L276 IsEmpty]: Start isEmpty. Operand 6947 states and 9654 transitions. [2020-10-14 07:54:51,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:54:51,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:51,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:51,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:54:51,549 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:51,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:51,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1138289330, now seen corresponding path program 1 times [2020-10-14 07:54:51,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:51,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923397184] [2020-10-14 07:54:51,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:51,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:51,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:51,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:52,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:55,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:55,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 07:54:55,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:54:55,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4156 [2020-10-14 07:54:55,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:55,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:55,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:55,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 07:54:55,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 07:54:55,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:55,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:55,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:55,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:55,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:55,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:55,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:55,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:55,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:55,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:55,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:55,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:55,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:55,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:55,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:55,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:55,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:55,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:55,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:54:55,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:55,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:55,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:55,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:55,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:55,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:55,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:55,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:55,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:55,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:55,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:55,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:55,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:55,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:55,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:55,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:55,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:55,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:54:55,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:55,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:55,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:55,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:55,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:55,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:55,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:55,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:55,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:55,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:55,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:55,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:54:55,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:55,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:54:55,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:56,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 07:54:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:56,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:56,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:56,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:56,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:56,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:56,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:56,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:56,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:56,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:56,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:56,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:56,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 07:54:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:56,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:56,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:56,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:56,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:56,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:56,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:56,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:54:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:56,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 07:54:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:56,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:56,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:56,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:56,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:56,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:56,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:56,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:56,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:56,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:54:56,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:56,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:56,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:54:56,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923397184] [2020-10-14 07:54:56,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:54:56,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:54:56,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347026445] [2020-10-14 07:54:56,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:54:56,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:56,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:54:56,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:54:56,088 INFO L87 Difference]: Start difference. First operand 6947 states and 9654 transitions. Second operand 10 states. [2020-10-14 07:54:58,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:58,050 INFO L93 Difference]: Finished difference Result 20023 states and 27920 transitions. [2020-10-14 07:54:58,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:54:58,051 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-10-14 07:54:58,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:58,149 INFO L225 Difference]: With dead ends: 20023 [2020-10-14 07:54:58,149 INFO L226 Difference]: Without dead ends: 13117 [2020-10-14 07:54:58,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:54:58,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13117 states. [2020-10-14 07:54:59,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13117 to 12987. [2020-10-14 07:54:59,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12987 states. [2020-10-14 07:54:59,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12987 states to 12987 states and 17794 transitions. [2020-10-14 07:54:59,266 INFO L78 Accepts]: Start accepts. Automaton has 12987 states and 17794 transitions. Word has length 84 [2020-10-14 07:54:59,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:54:59,266 INFO L479 AbstractCegarLoop]: Abstraction has 12987 states and 17794 transitions. [2020-10-14 07:54:59,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:54:59,267 INFO L276 IsEmpty]: Start isEmpty. Operand 12987 states and 17794 transitions. [2020-10-14 07:54:59,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 07:54:59,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:54:59,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:54:59,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:54:59,269 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:54:59,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:54:59,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1532219338, now seen corresponding path program 1 times [2020-10-14 07:54:59,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:54:59,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634218847] [2020-10-14 07:54:59,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:54:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 07:54:59,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:54:59,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-14 07:54:59,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:54:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 07:54:59,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:59,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:54:59,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:59,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:59,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:59,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:54:59,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:54:59,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:54:59,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:54:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:59,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:59,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:59,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:54:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:59,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:54:59,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:54:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:54:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:54:59,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:59,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:54:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:59,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:54:59,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:59,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:59,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:54:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:59,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:54:59,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:59,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:59,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:54:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:54:59,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:59,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:54:59,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:59,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:59,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:59,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:54:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:59,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:59,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:59,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:54:59,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:54:59,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:54:59,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:59,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:59,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:59,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:54:59,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:54:59,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:59,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:54:59,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634218847] [2020-10-14 07:54:59,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:54:59,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:54:59,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286831148] [2020-10-14 07:54:59,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:54:59,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:59,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:54:59,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:54:59,918 INFO L87 Difference]: Start difference. First operand 12987 states and 17794 transitions. Second operand 10 states. [2020-10-14 07:55:02,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:02,874 INFO L93 Difference]: Finished difference Result 31111 states and 42821 transitions. [2020-10-14 07:55:02,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 07:55:02,874 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-10-14 07:55:02,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:02,951 INFO L225 Difference]: With dead ends: 31111 [2020-10-14 07:55:02,951 INFO L226 Difference]: Without dead ends: 18165 [2020-10-14 07:55:02,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2020-10-14 07:55:03,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18165 states. [2020-10-14 07:55:03,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18165 to 17721. [2020-10-14 07:55:03,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17721 states. [2020-10-14 07:55:04,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17721 states to 17721 states and 24046 transitions. [2020-10-14 07:55:04,008 INFO L78 Accepts]: Start accepts. Automaton has 17721 states and 24046 transitions. Word has length 85 [2020-10-14 07:55:04,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:04,008 INFO L479 AbstractCegarLoop]: Abstraction has 17721 states and 24046 transitions. [2020-10-14 07:55:04,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:55:04,008 INFO L276 IsEmpty]: Start isEmpty. Operand 17721 states and 24046 transitions. [2020-10-14 07:55:04,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 07:55:04,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:04,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:55:04,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:55:04,010 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:04,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:04,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1115322997, now seen corresponding path program 1 times [2020-10-14 07:55:04,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:04,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397651420] [2020-10-14 07:55:04,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:04,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:04,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:04,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 07:55:04,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:04,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-14 07:55:04,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:04,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:04,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:55:04,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-14 07:55:04,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:04,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:04,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:04,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:04,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:04,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:04,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:04,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:04,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:04,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:04,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:04,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:04,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:04,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:04,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:04,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:04,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:04,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:55:04,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:04,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:04,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:04,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:04,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:04,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:04,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:04,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:04,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:04,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:04,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:04,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:04,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:04,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:04,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:04,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:04,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:04,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:04,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:04,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:04,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:04,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:04,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:04,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:04,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:04,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:04,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:04,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:04,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:04,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:04,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:04,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:04,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:04,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:04,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:04,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:04,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:04,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:04,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:55:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:04,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:04,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:04,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:04,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:04,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:04,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:04,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:04,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:04,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:04,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:04,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:04,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:55:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:04,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:04,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:04,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:04,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:04,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:04,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:04,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:04,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:04,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:04,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:04,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:04,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:55:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:04,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:04,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:04,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:04,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:04,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:04,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:04,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:55:04,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:04,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:55:04,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397651420] [2020-10-14 07:55:04,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:55:04,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 07:55:04,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863995749] [2020-10-14 07:55:04,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 07:55:04,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:04,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 07:55:04,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:55:04,649 INFO L87 Difference]: Start difference. First operand 17721 states and 24046 transitions. Second operand 13 states. [2020-10-14 07:55:06,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:06,825 INFO L93 Difference]: Finished difference Result 19187 states and 26911 transitions. [2020-10-14 07:55:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:55:06,826 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2020-10-14 07:55:06,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:06,909 INFO L225 Difference]: With dead ends: 19187 [2020-10-14 07:55:06,910 INFO L226 Difference]: Without dead ends: 19185 [2020-10-14 07:55:06,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-14 07:55:06,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19185 states. [2020-10-14 07:55:08,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19185 to 18009. [2020-10-14 07:55:08,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18009 states. [2020-10-14 07:55:08,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18009 states to 18009 states and 24310 transitions. [2020-10-14 07:55:08,998 INFO L78 Accepts]: Start accepts. Automaton has 18009 states and 24310 transitions. Word has length 85 [2020-10-14 07:55:08,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:08,998 INFO L479 AbstractCegarLoop]: Abstraction has 18009 states and 24310 transitions. [2020-10-14 07:55:08,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 07:55:08,999 INFO L276 IsEmpty]: Start isEmpty. Operand 18009 states and 24310 transitions. [2020-10-14 07:55:09,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-14 07:55:09,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:09,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:55:09,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:55:09,001 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:09,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:09,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1095153653, now seen corresponding path program 1 times [2020-10-14 07:55:09,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:09,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163728186] [2020-10-14 07:55:09,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:09,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:09,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:09,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:09,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 07:55:13,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:55:13,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4001 [2020-10-14 07:55:13,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:13,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 07:55:13,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:55:13,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:13,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:55:13,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:13,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:13,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:13,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:55:13,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:55:13,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:55:13,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:13,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:13,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:13,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:13,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:13,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:13,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:55:13,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:55:13,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:13,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:13,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:55:13,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:13,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:55:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:13,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:13,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:13,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:13,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:13,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:55:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:13,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:13,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:13,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:13,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:13,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:13,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 07:55:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:13,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:13,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:13,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:13,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:13,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:13,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 07:55:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:13,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:13,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:13,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:13,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:13,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:13,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:13,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:55:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:13,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:13,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:55:13,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163728186] [2020-10-14 07:55:13,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:55:13,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:55:13,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859118376] [2020-10-14 07:55:13,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:55:13,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:13,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:55:13,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:55:13,637 INFO L87 Difference]: Start difference. First operand 18009 states and 24310 transitions. Second operand 10 states. [2020-10-14 07:55:16,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:16,124 INFO L93 Difference]: Finished difference Result 38460 states and 52157 transitions. [2020-10-14 07:55:16,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:55:16,125 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-10-14 07:55:16,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:16,220 INFO L225 Difference]: With dead ends: 38460 [2020-10-14 07:55:16,221 INFO L226 Difference]: Without dead ends: 25001 [2020-10-14 07:55:16,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:55:16,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25001 states. [2020-10-14 07:55:17,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25001 to 24871. [2020-10-14 07:55:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24871 states. [2020-10-14 07:55:18,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24871 states to 24871 states and 33135 transitions. [2020-10-14 07:55:18,778 INFO L78 Accepts]: Start accepts. Automaton has 24871 states and 33135 transitions. Word has length 86 [2020-10-14 07:55:18,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:18,778 INFO L479 AbstractCegarLoop]: Abstraction has 24871 states and 33135 transitions. [2020-10-14 07:55:18,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:55:18,778 INFO L276 IsEmpty]: Start isEmpty. Operand 24871 states and 33135 transitions. [2020-10-14 07:55:18,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 07:55:18,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:18,786 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:55:18,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 07:55:18,786 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:18,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:18,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1242608942, now seen corresponding path program 1 times [2020-10-14 07:55:18,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:18,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733739213] [2020-10-14 07:55:18,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:18,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:18,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:18,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:19,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:23,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:23,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 07:55:23,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:55:23,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 07:55:23,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:23,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 07:55:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 07:55:23,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:23,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:23,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:23,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:23,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:23,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:23,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 07:55:23,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:23,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:23,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:23,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:55:23,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:23,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:23,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:23,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:55:23,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:23,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:23,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:23,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:23,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:23,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:23,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:23,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:23,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:23,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:23,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:23,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:23,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:23,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:23,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:23,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:23,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:23,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:24,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:24,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:24,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:24,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:24,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:24,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:24,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:24,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:24,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:24,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:24,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:24,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:24,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:24,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:24,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:24,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:24,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:55:24,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:24,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:55:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:24,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:24,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:24,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:24,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:24,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:24,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:24,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:24,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:24,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:24,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:24,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:55:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:24,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:24,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:24,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:24,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:24,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:24,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:24,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:24,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:55:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:24,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:24,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:24,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:24,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:24,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:24,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:24,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:24,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:24,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:55:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:24,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:24,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:24,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:24,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:24,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:24,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:24,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:24,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:24,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:24,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:24,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:55:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:24,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:24,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:24,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:24,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:24,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:24,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:24,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:24,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:24,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:24,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 07:55:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:24,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:24,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:24,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:24,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:55:24,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:24,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:24,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:24,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:24,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:24,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:24,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 07:55:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:24,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:24,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:24,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:24,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:24,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:24,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:24,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:24,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:24,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:24,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:24,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 07:55:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:24,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:24,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:24,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:24,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:24,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:24,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:24,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:24,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:55:24,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:24,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:24,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 07:55:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:24,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:24,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:24,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:24,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:24,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:24,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:24,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:24,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:24,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:55:24,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:24,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:24,263 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-14 07:55:24,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733739213] [2020-10-14 07:55:24,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:55:24,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:55:24,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686195184] [2020-10-14 07:55:24,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:55:24,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:24,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:55:24,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:55:24,266 INFO L87 Difference]: Start difference. First operand 24871 states and 33135 transitions. Second operand 10 states. [2020-10-14 07:55:26,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:26,384 INFO L93 Difference]: Finished difference Result 49827 states and 66353 transitions. [2020-10-14 07:55:26,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:55:26,385 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 129 [2020-10-14 07:55:26,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:26,506 INFO L225 Difference]: With dead ends: 49827 [2020-10-14 07:55:26,506 INFO L226 Difference]: Without dead ends: 25001 [2020-10-14 07:55:26,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:55:26,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25001 states. [2020-10-14 07:55:27,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25001 to 24871. [2020-10-14 07:55:27,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24871 states. [2020-10-14 07:55:27,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24871 states to 24871 states and 32679 transitions. [2020-10-14 07:55:27,980 INFO L78 Accepts]: Start accepts. Automaton has 24871 states and 32679 transitions. Word has length 129 [2020-10-14 07:55:27,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:27,980 INFO L479 AbstractCegarLoop]: Abstraction has 24871 states and 32679 transitions. [2020-10-14 07:55:27,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:55:27,981 INFO L276 IsEmpty]: Start isEmpty. Operand 24871 states and 32679 transitions. [2020-10-14 07:55:27,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 07:55:27,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:27,985 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:55:27,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 07:55:27,986 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:27,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:27,986 INFO L82 PathProgramCache]: Analyzing trace with hash -4899912, now seen corresponding path program 1 times [2020-10-14 07:55:27,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:27,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701114964] [2020-10-14 07:55:27,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:28,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:28,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:28,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:29,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 07:55:33,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:55:33,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 07:55:33,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:33,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-14 07:55:33,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 07:55:33,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:33,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:33,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:33,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:33,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:33,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:55:33,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:33,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:33,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:33,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:33,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:33,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:55:33,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:33,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:33,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:33,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:33,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:33,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:33,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:33,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:55:33,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:33,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:33,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:33,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:55:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:33,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:33,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:33,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:33,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:33,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:55:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:33,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:33,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:33,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:33,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:33,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:55:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:33,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:33,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:33,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:55:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:33,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:33,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:33,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:33,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:33,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:55:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:33,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:55:33,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:33,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:33,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:33,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 07:55:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:33,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:33,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:33,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:33,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:33,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 07:55:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:33,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:33,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:55:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:33,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:55:33,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 07:55:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:33,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:33,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:55:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 07:55:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:33,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:33,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:33,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:33,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:33,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:33,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:33,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:55:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:33,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:33,361 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-14 07:55:33,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701114964] [2020-10-14 07:55:33,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:55:33,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:55:33,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856949156] [2020-10-14 07:55:33,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:55:33,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:33,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:55:33,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:55:33,363 INFO L87 Difference]: Start difference. First operand 24871 states and 32679 transitions. Second operand 10 states. [2020-10-14 07:55:33,860 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-14 07:55:35,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:35,128 INFO L93 Difference]: Finished difference Result 34533 states and 45314 transitions. [2020-10-14 07:55:35,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:55:35,128 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 129 [2020-10-14 07:55:35,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:35,159 INFO L225 Difference]: With dead ends: 34533 [2020-10-14 07:55:35,159 INFO L226 Difference]: Without dead ends: 9707 [2020-10-14 07:55:35,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:55:35,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9707 states. [2020-10-14 07:55:35,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9707 to 9177. [2020-10-14 07:55:35,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9177 states. [2020-10-14 07:55:35,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9177 states to 9177 states and 11758 transitions. [2020-10-14 07:55:35,739 INFO L78 Accepts]: Start accepts. Automaton has 9177 states and 11758 transitions. Word has length 129 [2020-10-14 07:55:35,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:35,739 INFO L479 AbstractCegarLoop]: Abstraction has 9177 states and 11758 transitions. [2020-10-14 07:55:35,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:55:35,739 INFO L276 IsEmpty]: Start isEmpty. Operand 9177 states and 11758 transitions. [2020-10-14 07:55:35,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 07:55:35,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:35,743 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:55:35,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 07:55:35,744 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:35,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:35,744 INFO L82 PathProgramCache]: Analyzing trace with hash -820317613, now seen corresponding path program 1 times [2020-10-14 07:55:35,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:35,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476056930] [2020-10-14 07:55:35,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:35,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:35,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:35,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:36,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:40,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:40,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 07:55:40,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:55:40,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5135 [2020-10-14 07:55:40,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:40,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:40,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:55:40,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-14 07:55:40,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 07:55:40,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:41,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:41,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:41,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:41,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:41,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:55:41,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:41,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 07:55:41,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:41,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:41,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:41,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:41,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:41,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:41,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:41,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:41,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:41,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:41,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:41,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:55:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:41,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:41,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:41,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:41,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:55:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:41,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:55:41,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:41,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:41,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:41,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:55:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:41,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:41,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:55:41,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:41,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:41,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:55:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:41,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:41,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:41,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:41,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:41,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:55:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:41,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:41,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:41,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:41,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:55:41,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:55:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:41,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:41,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:41,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:41,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:41,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:55:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:41,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:41,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:41,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:41,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:41,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 07:55:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:41,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:41,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:55:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:41,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 07:55:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:41,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:41,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:41,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:41,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:41,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:41,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:41,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:41,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:41,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:55:41,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:55:41,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 07:55:41,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476056930] [2020-10-14 07:55:41,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:55:41,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:55:41,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144014124] [2020-10-14 07:55:41,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:55:41,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:41,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:55:41,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:55:41,341 INFO L87 Difference]: Start difference. First operand 9177 states and 11758 transitions. Second operand 17 states. [2020-10-14 07:55:41,574 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-14 07:55:43,587 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-14 07:55:46,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:55:46,031 INFO L93 Difference]: Finished difference Result 22495 states and 29557 transitions. [2020-10-14 07:55:46,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-14 07:55:46,031 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 131 [2020-10-14 07:55:46,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:55:46,064 INFO L225 Difference]: With dead ends: 22495 [2020-10-14 07:55:46,064 INFO L226 Difference]: Without dead ends: 14083 [2020-10-14 07:55:46,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=604, Invalid=1846, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 07:55:46,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14083 states. [2020-10-14 07:55:46,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14083 to 13873. [2020-10-14 07:55:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13873 states. [2020-10-14 07:55:46,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13873 states to 13873 states and 17926 transitions. [2020-10-14 07:55:46,881 INFO L78 Accepts]: Start accepts. Automaton has 13873 states and 17926 transitions. Word has length 131 [2020-10-14 07:55:46,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:55:46,881 INFO L479 AbstractCegarLoop]: Abstraction has 13873 states and 17926 transitions. [2020-10-14 07:55:46,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:55:46,881 INFO L276 IsEmpty]: Start isEmpty. Operand 13873 states and 17926 transitions. [2020-10-14 07:55:46,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 07:55:46,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:55:46,885 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:55:46,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 07:55:46,885 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:55:46,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:55:46,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1211962869, now seen corresponding path program 1 times [2020-10-14 07:55:46,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:55:46,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074678447] [2020-10-14 07:55:46,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:55:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:46,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:46,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:47,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:47,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:51,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:51,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 07:55:51,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:55:51,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 07:55:51,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:51,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:51,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:55:51,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 07:55:51,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 07:55:51,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:55:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:55:52,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:52,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:55:52,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:55:52,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:55:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:55:52,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:52,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:52,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:55:52,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:55:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:52,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:55:52,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:52,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:52,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:55:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:52,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:52,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:52,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:55:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:52,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:52,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:52,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:52,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:55:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:52,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:52,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:52,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:52,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:52,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:55:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:52,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:55:52,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:55:52,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:55:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:52,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:55:52,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:55:52,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:52,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:55:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:55:52,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:52,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:55:52,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:55:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:52,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:55:52,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:52,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:52,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:55:52,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:55:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:52,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:52,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:52,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:52,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:52,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:55:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:55:52,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:55:52,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:55:52,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:55:52,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:55:52,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 07:55:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:55:52,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:55:52,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:55:52,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:55:52,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:55:52,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 07:55:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:55:52,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:55:52,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:55:52,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:55:52,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:55:52,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:55:52,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:55:52,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:55:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:55:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:55:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:55:52,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:55:52,337 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 07:55:52,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1074678447] [2020-10-14 07:55:52,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:55:52,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:55:52,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924926118] [2020-10-14 07:55:52,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:55:52,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:55:52,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:55:52,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:55:52,340 INFO L87 Difference]: Start difference. First operand 13873 states and 17926 transitions. Second operand 17 states. [2020-10-14 07:55:52,563 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-14 07:55:54,452 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-14 07:55:55,499 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-14 07:56:01,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:01,069 INFO L93 Difference]: Finished difference Result 41253 states and 53316 transitions. [2020-10-14 07:56:01,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-14 07:56:01,069 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 131 [2020-10-14 07:56:01,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:01,151 INFO L225 Difference]: With dead ends: 41253 [2020-10-14 07:56:01,151 INFO L226 Difference]: Without dead ends: 29655 [2020-10-14 07:56:01,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2223 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1243, Invalid=5563, Unknown=0, NotChecked=0, Total=6806 [2020-10-14 07:56:01,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29655 states. [2020-10-14 07:56:02,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29655 to 29113. [2020-10-14 07:56:02,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29113 states. [2020-10-14 07:56:03,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29113 states to 29113 states and 37556 transitions. [2020-10-14 07:56:03,015 INFO L78 Accepts]: Start accepts. Automaton has 29113 states and 37556 transitions. Word has length 131 [2020-10-14 07:56:03,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:03,015 INFO L479 AbstractCegarLoop]: Abstraction has 29113 states and 37556 transitions. [2020-10-14 07:56:03,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:56:03,015 INFO L276 IsEmpty]: Start isEmpty. Operand 29113 states and 37556 transitions. [2020-10-14 07:56:03,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 07:56:03,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:03,019 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:03,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 07:56:03,019 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:03,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:03,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1529848883, now seen corresponding path program 1 times [2020-10-14 07:56:03,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:03,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289218150] [2020-10-14 07:56:03,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:03,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:03,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:03,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:03,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 07:56:08,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:56:08,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:56:08,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:56:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 07:56:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 07:56:08,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:08,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:08,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:08,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:56:08,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:08,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:08,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:08,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:56:08,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:56:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:08,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:08,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:56:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:08,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:08,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:08,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:08,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:08,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:56:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:08,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:08,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:08,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:08,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:08,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:56:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:08,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:08,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:08,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:56:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:08,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:08,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:08,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:08,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:08,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:08,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:08,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:56:08,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:08,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:56:08,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:56:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:08,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:08,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:08,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:08,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:08,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:56:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:08,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:08,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:08,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:08,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:56:08,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:56:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:08,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:08,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:56:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:56:08,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-14 07:56:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:08,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:56:08,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:08,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:08,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:08,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 07:56:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:08,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:08,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:08,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:08,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:08,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 07:56:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:08,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:08,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:08,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:56:08,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:08,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:08,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:08,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:08,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:08,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:56:08,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:56:08,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:08,459 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 07:56:08,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289218150] [2020-10-14 07:56:08,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:56:08,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:56:08,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076268216] [2020-10-14 07:56:08,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:56:08,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:08,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:56:08,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:56:08,462 INFO L87 Difference]: Start difference. First operand 29113 states and 37556 transitions. Second operand 17 states. [2020-10-14 07:56:08,669 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-14 07:56:10,367 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-14 07:56:21,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:21,048 INFO L93 Difference]: Finished difference Result 68171 states and 88024 transitions. [2020-10-14 07:56:21,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-14 07:56:21,049 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 131 [2020-10-14 07:56:21,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:21,188 INFO L225 Difference]: With dead ends: 68171 [2020-10-14 07:56:21,188 INFO L226 Difference]: Without dead ends: 48409 [2020-10-14 07:56:21,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2203 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1243, Invalid=5563, Unknown=0, NotChecked=0, Total=6806 [2020-10-14 07:56:21,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48409 states. [2020-10-14 07:56:23,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48409 to 47399. [2020-10-14 07:56:23,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47399 states. [2020-10-14 07:56:24,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47399 states to 47399 states and 61120 transitions. [2020-10-14 07:56:24,010 INFO L78 Accepts]: Start accepts. Automaton has 47399 states and 61120 transitions. Word has length 131 [2020-10-14 07:56:24,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:24,011 INFO L479 AbstractCegarLoop]: Abstraction has 47399 states and 61120 transitions. [2020-10-14 07:56:24,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:56:24,011 INFO L276 IsEmpty]: Start isEmpty. Operand 47399 states and 61120 transitions. [2020-10-14 07:56:24,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 07:56:24,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:24,014 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:24,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 07:56:24,014 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:24,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:24,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1130606241, now seen corresponding path program 1 times [2020-10-14 07:56:24,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:24,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294708295] [2020-10-14 07:56:24,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:24,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:24,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:24,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:24,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:26,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 07:56:29,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:56:29,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 07:56:29,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:56:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:56:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 07:56:29,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:29,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:29,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:29,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:29,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:56:29,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:29,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:29,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:56:29,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:56:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:29,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:29,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:29,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:29,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:56:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:29,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:29,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:29,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:29,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:29,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:56:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:29,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:29,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:29,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:29,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:56:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:29,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:29,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:29,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:56:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:29,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:29,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:29,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:29,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:29,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:56:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:56:29,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:56:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:29,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:29,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:29,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:29,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:29,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:56:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:56:29,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:56:29,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:56:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 07:56:29,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 07:56:29,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:29,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:29,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:29,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:29,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:29,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-14 07:56:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:29,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:56:29,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:29,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:29,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:29,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 07:56:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:29,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:29,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:29,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 07:56:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:29,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:29,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:29,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:56:29,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:29,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:29,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:29,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:29,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:29,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:56:29,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:56:29,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:29,483 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 07:56:29,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294708295] [2020-10-14 07:56:29,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:56:29,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:56:29,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057937977] [2020-10-14 07:56:29,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:56:29,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:29,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:56:29,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:56:29,485 INFO L87 Difference]: Start difference. First operand 47399 states and 61120 transitions. Second operand 17 states. [2020-10-14 07:56:29,708 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-14 07:56:31,022 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-14 07:56:39,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:39,723 INFO L93 Difference]: Finished difference Result 77527 states and 100081 transitions. [2020-10-14 07:56:39,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-14 07:56:39,724 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 131 [2020-10-14 07:56:39,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:39,840 INFO L225 Difference]: With dead ends: 77527 [2020-10-14 07:56:39,840 INFO L226 Difference]: Without dead ends: 56849 [2020-10-14 07:56:39,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2206 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1243, Invalid=5563, Unknown=0, NotChecked=0, Total=6806 [2020-10-14 07:56:39,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56849 states. [2020-10-14 07:56:42,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56849 to 55431. [2020-10-14 07:56:42,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55431 states. [2020-10-14 07:56:42,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55431 states to 55431 states and 71452 transitions. [2020-10-14 07:56:42,978 INFO L78 Accepts]: Start accepts. Automaton has 55431 states and 71452 transitions. Word has length 131 [2020-10-14 07:56:42,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:42,978 INFO L479 AbstractCegarLoop]: Abstraction has 55431 states and 71452 transitions. [2020-10-14 07:56:42,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:56:42,978 INFO L276 IsEmpty]: Start isEmpty. Operand 55431 states and 71452 transitions. [2020-10-14 07:56:42,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-14 07:56:42,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:42,981 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:42,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 07:56:42,981 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:42,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:42,982 INFO L82 PathProgramCache]: Analyzing trace with hash 2030473915, now seen corresponding path program 1 times [2020-10-14 07:56:42,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:42,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977896838] [2020-10-14 07:56:42,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:43,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:43,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:43,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:44,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 07:56:48,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:56:48,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 07:56:48,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:48,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-14 07:56:48,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 07:56:48,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:48,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:48,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:48,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:48,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:48,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:56:48,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:48,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:48,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:56:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:48,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:56:48,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:48,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:48,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:48,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:56:48,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:56:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:48,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:48,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:48,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:48,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:48,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:56:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:48,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:48,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:48,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:48,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:48,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:56:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:48,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:48,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:56:48,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:56:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:48,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:48,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:48,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:48,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:48,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:48,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:48,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:48,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:48,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:56:48,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:56:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:48,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:48,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:48,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:48,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:48,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:56:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:48,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:48,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:48,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:48,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:56:48,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:56:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:48,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:48,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:48,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:56:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:48,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:48,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:56:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:48,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 07:56:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:48,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:48,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:48,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:56:48,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:48,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 07:56:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:48,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:48,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:48,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:48,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:48,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:48,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:48,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:48,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:48,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:56:48,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:48,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-14 07:56:48,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977896838] [2020-10-14 07:56:48,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:56:48,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:56:48,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214253026] [2020-10-14 07:56:48,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:56:48,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:48,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:56:48,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:56:48,328 INFO L87 Difference]: Start difference. First operand 55431 states and 71452 transitions. Second operand 10 states. [2020-10-14 07:56:51,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:56:51,081 INFO L93 Difference]: Finished difference Result 82985 states and 106674 transitions. [2020-10-14 07:56:51,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:56:51,081 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 132 [2020-10-14 07:56:51,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:56:51,138 INFO L225 Difference]: With dead ends: 82985 [2020-10-14 07:56:51,139 INFO L226 Difference]: Without dead ends: 27645 [2020-10-14 07:56:51,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:56:51,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27645 states. [2020-10-14 07:56:52,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27645 to 27467. [2020-10-14 07:56:52,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27467 states. [2020-10-14 07:56:52,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27467 states to 27467 states and 34710 transitions. [2020-10-14 07:56:52,652 INFO L78 Accepts]: Start accepts. Automaton has 27467 states and 34710 transitions. Word has length 132 [2020-10-14 07:56:52,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:56:52,652 INFO L479 AbstractCegarLoop]: Abstraction has 27467 states and 34710 transitions. [2020-10-14 07:56:52,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:56:52,652 INFO L276 IsEmpty]: Start isEmpty. Operand 27467 states and 34710 transitions. [2020-10-14 07:56:52,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-14 07:56:52,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:56:52,654 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:56:52,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 07:56:52,654 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:56:52,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:56:52,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1275939013, now seen corresponding path program 1 times [2020-10-14 07:56:52,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:56:52,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370876140] [2020-10-14 07:56:52,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:56:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:52,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:52,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:52,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:53,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 07:56:57,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:56:57,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 07:56:57,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:56:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:56:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 07:56:57,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:57,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:56:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:56:57,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:57,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:57,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:57,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:56:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:56:57,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:57,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:56:57,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:57,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:56:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:57,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:56:57,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:57,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:57,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:56:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:57,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:57,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:57,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:57,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:57,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:56:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:57,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:57,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:57,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:57,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:57,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:57,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:56:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:57,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:57,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:57,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:57,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:57,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:56:57,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:57,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:56:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:57,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:58,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:56:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:58,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:58,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:58,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:58,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:58,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:56:58,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:58,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:58,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:58,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:58,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:58,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:56:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:58,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:58,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:58,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:58,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:58,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:56:58,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:58,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:58,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:58,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:58,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:56:58,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:58,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:56:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:58,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:58,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:58,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:56:58,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:58,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:56:58,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:58,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:58,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:58,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:58,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:56:58,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:58,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:56:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:58,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:58,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:58,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:58,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:58,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:58,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:58,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:58,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:58,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:58,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:56:58,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:58,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:56:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:58,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:58,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:58,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:58,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:58,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:58,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:58,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:58,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:58,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:58,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:58,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:58,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:56:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:58,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:58,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:58,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:58,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:58,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:56:58,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:58,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:58,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:56:58,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:56:58,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:56:58,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:58,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 07:56:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:58,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:58,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:58,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:56:58,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:58,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:56:58,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:58,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:58,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:56:58,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:56:58,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:56:58,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:58,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 07:56:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:56:58,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:56:58,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:56:58,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:56:58,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:56:58,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:56:58,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:56:58,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:56:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:56:58,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:56:58,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:56:58,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:56:58,169 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-14 07:56:58,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [370876140] [2020-10-14 07:56:58,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:56:58,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 07:56:58,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166716918] [2020-10-14 07:56:58,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 07:56:58,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:56:58,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 07:56:58,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-14 07:56:58,171 INFO L87 Difference]: Start difference. First operand 27467 states and 34710 transitions. Second operand 16 states. [2020-10-14 07:56:59,658 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-14 07:57:05,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:57:05,635 INFO L93 Difference]: Finished difference Result 104300 states and 132011 transitions. [2020-10-14 07:57:05,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 07:57:05,636 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 132 [2020-10-14 07:57:05,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:57:05,914 INFO L225 Difference]: With dead ends: 104300 [2020-10-14 07:57:05,915 INFO L226 Difference]: Without dead ends: 76924 [2020-10-14 07:57:06,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=469, Invalid=2081, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 07:57:06,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76924 states. [2020-10-14 07:57:12,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76924 to 73735. [2020-10-14 07:57:12,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73735 states. [2020-10-14 07:57:12,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73735 states to 73735 states and 93989 transitions. [2020-10-14 07:57:12,675 INFO L78 Accepts]: Start accepts. Automaton has 73735 states and 93989 transitions. Word has length 132 [2020-10-14 07:57:12,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:57:12,676 INFO L479 AbstractCegarLoop]: Abstraction has 73735 states and 93989 transitions. [2020-10-14 07:57:12,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 07:57:12,676 INFO L276 IsEmpty]: Start isEmpty. Operand 73735 states and 93989 transitions. [2020-10-14 07:57:12,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-14 07:57:12,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:57:12,681 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:57:12,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 07:57:12,682 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:57:12,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:57:12,682 INFO L82 PathProgramCache]: Analyzing trace with hash -310663281, now seen corresponding path program 1 times [2020-10-14 07:57:12,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:57:12,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2093542494] [2020-10-14 07:57:12,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:57:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:12,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:12,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:12,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:14,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 07:57:17,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:57:17,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 07:57:17,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:17,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 07:57:17,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 07:57:17,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:17,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:57:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:17,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:57:17,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:17,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:17,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:17,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:17,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:17,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:17,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:57:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:17,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:57:17,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:17,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:17,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:17,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:17,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:17,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:17,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:57:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:17,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:17,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:17,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:57:17,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:17,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:17,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:17,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:17,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:57:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:17,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:17,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:17,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:17,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:17,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:17,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:17,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:17,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:57:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:17,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:17,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:17,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:17,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:17,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:17,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:17,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:17,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:57:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:17,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:17,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:17,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:17,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:17,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:17,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:17,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:17,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:57:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:17,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:17,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:17,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:17,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:17,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:17,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:57:17,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:17,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:57:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:17,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:17,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:17,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:17,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:57:17,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:17,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:57:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:17,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:17,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:17,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:57:17,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:57:17,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:17,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:57:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:17,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:17,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:17,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:17,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:57:17,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:17,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:57:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:17,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:17,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:17,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:17,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:17,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:17,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:17,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:17,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:57:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:17,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:17,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:17,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:17,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:17,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:17,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:17,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 07:57:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:17,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:17,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:17,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:17,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:17,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:57:17,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:17,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:17,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:17,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:57:17,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:57:17,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:18,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 07:57:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:18,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:18,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:18,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:18,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:18,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:18,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:18,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:57:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:18,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:18,029 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-14 07:57:18,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2093542494] [2020-10-14 07:57:18,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:57:18,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:57:18,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414749638] [2020-10-14 07:57:18,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:57:18,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:57:18,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:57:18,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:57:18,031 INFO L87 Difference]: Start difference. First operand 73735 states and 93989 transitions. Second operand 10 states. [2020-10-14 07:57:21,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:57:21,428 INFO L93 Difference]: Finished difference Result 110101 states and 140013 transitions. [2020-10-14 07:57:21,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:57:21,429 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 132 [2020-10-14 07:57:21,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:57:21,577 INFO L225 Difference]: With dead ends: 110101 [2020-10-14 07:57:21,577 INFO L226 Difference]: Without dead ends: 36488 [2020-10-14 07:57:21,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:57:21,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36488 states. [2020-10-14 07:57:23,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36488 to 35778. [2020-10-14 07:57:23,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35778 states. [2020-10-14 07:57:23,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35778 states to 35778 states and 44546 transitions. [2020-10-14 07:57:23,998 INFO L78 Accepts]: Start accepts. Automaton has 35778 states and 44546 transitions. Word has length 132 [2020-10-14 07:57:23,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:57:23,998 INFO L479 AbstractCegarLoop]: Abstraction has 35778 states and 44546 transitions. [2020-10-14 07:57:23,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:57:23,999 INFO L276 IsEmpty]: Start isEmpty. Operand 35778 states and 44546 transitions. [2020-10-14 07:57:24,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-14 07:57:24,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:57:24,001 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:57:24,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 07:57:24,002 INFO L427 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:57:24,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:57:24,002 INFO L82 PathProgramCache]: Analyzing trace with hash -635103545, now seen corresponding path program 1 times [2020-10-14 07:57:24,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:57:24,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767676334] [2020-10-14 07:57:24,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:57:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:24,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:24,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:24,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:24,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 07:57:29,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:57:29,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 07:57:29,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:57:29,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:57:29,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:57:29,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:29,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:57:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:57:29,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:57:29,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:57:29,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:29,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:57:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:57:29,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:57:29,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:29,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:29,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:57:29,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:29,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:57:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:29,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:57:29,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:57:29,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:29,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:57:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:29,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:29,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:29,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:29,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:29,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:29,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:57:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:29,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:29,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:29,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:29,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:29,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:29,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:57:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:29,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:57:29,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:57:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:57:29,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:29,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:57:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:29,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:29,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:29,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:57:29,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:29,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:29,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:57:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:29,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:57:29,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:57:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:29,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:29,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:57:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:29,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:57:29,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:29,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:57:29,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:29,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:57:29,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:57:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:29,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:29,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:57:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:29,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:29,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:57:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:29,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:29,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:57:29,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:29,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:29,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:57:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:29,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:29,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:29,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:57:29,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:29,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:29,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 07:57:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:29,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:57:29,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:29,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:57:29,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:29,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:29,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 07:57:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:29,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:29,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:29,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:29,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:29,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:57:29,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:29,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:29,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:29,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:57:29,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:29,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:29,420 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 07:57:29,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767676334] [2020-10-14 07:57:29,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:57:29,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 07:57:29,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128174337] [2020-10-14 07:57:29,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 07:57:29,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:57:29,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 07:57:29,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:57:29,422 INFO L87 Difference]: Start difference. First operand 35778 states and 44546 transitions. Second operand 14 states. [2020-10-14 07:57:29,665 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-14 07:57:30,262 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-14 07:57:32,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:57:32,929 INFO L93 Difference]: Finished difference Result 64464 states and 80106 transitions. [2020-10-14 07:57:32,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 07:57:32,930 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 132 [2020-10-14 07:57:32,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:57:33,010 INFO L225 Difference]: With dead ends: 64464 [2020-10-14 07:57:33,010 INFO L226 Difference]: Without dead ends: 28435 [2020-10-14 07:57:33,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:57:33,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28435 states. [2020-10-14 07:57:34,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28435 to 27935. [2020-10-14 07:57:34,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27935 states. [2020-10-14 07:57:35,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27935 states to 27935 states and 34166 transitions. [2020-10-14 07:57:35,024 INFO L78 Accepts]: Start accepts. Automaton has 27935 states and 34166 transitions. Word has length 132 [2020-10-14 07:57:35,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:57:35,024 INFO L479 AbstractCegarLoop]: Abstraction has 27935 states and 34166 transitions. [2020-10-14 07:57:35,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 07:57:35,024 INFO L276 IsEmpty]: Start isEmpty. Operand 27935 states and 34166 transitions. [2020-10-14 07:57:35,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-14 07:57:35,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:57:35,026 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:57:35,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 07:57:35,027 INFO L427 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:57:35,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:57:35,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1114231265, now seen corresponding path program 1 times [2020-10-14 07:57:35,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:57:35,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579163760] [2020-10-14 07:57:35,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:57:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:35,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:35,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:35,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:35,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:37,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:38,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 07:57:40,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:57:40,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:57:40,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:57:40,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 07:57:40,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 07:57:40,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:57:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:57:40,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:40,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:40,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:57:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:57:40,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:57:40,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:57:40,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:40,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:57:40,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:57:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:40,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:40,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:40,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:57:40,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:57:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:40,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:57:40,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:40,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:40,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:40,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:57:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:40,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:57:40,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:40,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:57:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:40,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:57:40,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:57:40,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:57:40,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:57:40,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 07:57:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:40,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:57:40,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:40,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:40,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:40,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:57:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:40,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:40,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:40,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:40,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:57:40,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 07:57:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:57:40,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:57:40,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:40,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:40,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:57:40,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 07:57:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:40,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:57:40,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:57:40,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 07:57:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 07:57:40,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:40,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:40,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:40,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:57:40,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 07:57:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:40,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:57:40,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:57:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:57:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:57:40,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 07:57:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:57:40,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:57:40,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:57:40,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:57:40,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:57:40,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 07:57:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:57:40,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:57:40,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:57:40,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:57:40,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:57:40,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:57:40,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:57:40,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:57:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:57:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:57:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:57:40,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:57:40,673 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 07:57:40,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579163760] [2020-10-14 07:57:40,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:57:40,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 07:57:40,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585186917] [2020-10-14 07:57:40,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 07:57:40,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:57:40,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 07:57:40,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:57:40,675 INFO L87 Difference]: Start difference. First operand 27935 states and 34166 transitions. Second operand 19 states. [2020-10-14 07:57:40,959 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2020-10-14 07:57:41,643 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 114 [2020-10-14 07:57:42,062 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-10-14 07:57:42,316 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-10-14 07:57:42,712 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-10-14 07:57:43,037 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2020-10-14 07:57:43,484 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-10-14 07:57:43,711 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-14 07:57:44,167 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-10-14 07:57:44,494 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-10-14 07:57:44,786 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70